<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <th:block th:include="admin/bootstrap :: head">
    </th:block>
</head>
<body style="background:white; width:auto;height:800px;">
<div  th:replace="admin/bootstrap :: admin1">
    <!-- 头部位置-->
</div>
</body>
</html>